/Engine/Plugins/Editor/BlueprintMaterialTextureNodes/Source/BlueprintMaterialTextureNodes/Public/BlueprintMaterialTextureNodesBPLibrary.h
For more info on custom blueprint nodes visit documentation:https://docs.unrealengine.com/ProgrammingAndScripting/Blueprints/TechnicalGuide/ExtendingBlueprints
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UBlueprintMaterialTextureNodesBPLibrary : public [UBlueprintFunctionLibrary](API\Runtime\Engine\Kismet\UBlueprintFunctionLibrary)